A new photoresponsive crown ether (2) in which the poly)oxyethylene) chain is linked to 4- and 4′-position of azobenzene was synthesized. Trans-(2) completely lacked the affinity to alkali metal cations, while photoisomerized cis-(2) was capable of binding K+, Rb+, and Cs+.
All Science Journal Classification (ASJC) codes
- Drug Discovery
- Organic Chemistry